HTP Error Er:11: Ignition Lockout
The boiler tried to light the burner the maximum number of times in a row and never proved a flame, so it has locked out. No heat or hot water until reset. We diagnose and repair it across Greater Vancouver — same-day and after-hours.
The boiler tried to light the burner the maximum number of times in a row and never proved a flame, so it has locked out. No heat or hot water until reset.
HTP fault codes can vary by model and series. Use this as a guide — the same code can have more than one cause. Our Technical Safety BC–licensed technicians read the code, confirm it against your unit's manual, and diagnose the true cause before any repair.
Likely causes of HTP error Er:11
- Gas supply turned off or low gas pressure
- Dirty, cracked, or misgapped igniter/ignition electrode
- Faulty or dirty flame sensor
- Air/fuel mixture too lean (combustion needs adjustment)
- Blocked intake or exhaust vent
What you can safely check
- Confirm the gas is on and other gas appliances (stove, water heater) are working
- Check that the outdoor intake/exhaust vent terminals are clear of snow, leaves, or debris
Beyond these checks, do not open the unit or touch gas/electrical parts — BC law requires a licensed gas fitter. Call us for a proper diagnosis.
Error Er:11 usually leaves you without heat or hot water and can indicate a safety-related fault. Don't keep resetting it — call for priority after-hours HTP repair.
Parts Are Professionally Installed — Not Sold for DIY
For your safety and to keep your manufacturer warranty valid, BoilerPart.ca does not sell loose boiler parts over the counter or for self-installation. Under BC regulations, gas appliance components must be installed by a licensed gas fitter. Every part we source is genuine OEM and is professionally fitted, tested, and certified by our Technical Safety BC–licensed technicians as part of a complete repair or installation.
Parts often behind HTP error Er:11
Genuine HTP parts we supply and professionally install — never for DIY.
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Every repair and installation is backed by genuine parts, licensed workmanship, and a promise to make it right.
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Every repair and installation is backed by our written workmanship guarantee. If a part we installed fails because of our work, we make it right.
Genuine OEM Parts
We fit only manufacturer-original (OEM) components so your boiler performs to spec and keeps its factory warranty intact.
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As an authorised service provider for the brands we work on, our installs preserve and register your manufacturer parts warranty.
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All work is completed by Technical Safety BC–licensed gas fitters (Licence LGA0043870, Boiler Permit LBP0046450). We are fully licensed, bonded and insured for your protection.
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Backed by the full HVAC resources of CanroHeat.ca and four decades of service in Greater Vancouver since 1985.
HTP Error Er:11 Repair Across Metro Vancouver
Related HTP Ignition & Flame Codes
Frequently Asked Questions
Fix HTP Error Er:11 Today
Licensed HTP diagnosis and repair with genuine parts — same-day and after-hours across Greater Vancouver.
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